Basic information of Ninglian Expressway

Ninglian Expressway is an important section of Changshen Expressway planned by the national expressway network. At the same time, it is also the vertical three parts of Jiangsu's "four vertical, four horizontal and four cross roads" expressway network. Jiangsu Suning Huai section and Anhui Tianchang section are 209.7 kilometers long, starting from the Third Yangtze River Bridge in Nanjing, Jiangsu Province, passing through Tianchang City, Anhui Province, and ending in Huai 'an City, Jiangsu Province, including Jiangsu Ninghuai section 195.7 kilometers and Anhui Tianchang section 14 kilometers. This section is connected with Huailian Expressway, which was completed and opened to traffic in the early days. It is directly connected with Nanjing City in Jiangsu Province and five cities in northern Jiangsu Province, and intersects with Tianchang City in Anhui Province, forming an important traffic artery running through the north and south of Jiangsu Province. It is an important part of the skeleton network of Subei Expressway. "Ning" in "Ninglian Expressway" refers to Nanjing and "Lian" refers to Lianyungang.

Ninglian Expressway is also an important part of the "four verticals, four horizontals and four links" in the planning and layout of the expressway network in Jiangsu Province, and it is a link connecting cities in northern Jiangsu such as Nanjing, the provincial capital, and Huai 'an. Nanjing section of Ninglian Expressway consists of two parts, namely, Jiangbei section of Nanjing and Nanjing section of Ma Yong. Along the way, it passes through Laoshan Mountain, Pearl River Town, Yongning, Pancheng, Getang, Xinji, Chengqiao, Zhu Zhen and other market towns, and passes through Jinpu Railway, National Highway 104, Zhujiashan River, Macha River, Chuhe Ancient Road, Yangshan River, chaoyang river and other roads.

Nanjing section of Ninglian Expressway passes through hilly area, hilly area and plain area. The topography and geology are complex, the project scale is large, and there are many key and difficult projects. The earthwork quantity of subgrade in the whole line is13.38 million m3 (including: subgrade filling:10.85 million m3; Subgrade excavation: 2.28 million m3; Pre-pressed earthwork: 250,000 m3 m3)；; ; There are 33 large and medium-sized bridges in the whole line (the total length of Dishuizhu Viaduct is 6 1 1m, and the central pile number FK8+570；; ; The total length of Huaqiying Railway Viaduct is1682m, and the central pile number is FK 17+574. The total length of Zhujiashanhe Bridge is1045m, and the central pile number is FK2 1+242. The total length of Yongfeng Bridge is 507 meters, and the central pile number is FK25+ 155. The total length of Machahe Bridge is1.499m, and the central pile number is HK32+3,865,438+0. The total length of Chuhe Bridge is 648 meters, with the central pile number K43+986；; . The total length of Chuhe Gudao Bridge is 17 18m, with the central pile number K46+860；; . The total length of Yangshan River Bridge is 5 18m, with the central pile number K48+655；; . The total length of chaoyang river Bridge is 488 meters, with the central pile number K60+350 and the bridge length 143 19m. Set up two long tunnels with a length of 3610m; ; There are five interchanges (Jiangpu Interchange, pile number: FK10+910; Citibank overpass, pile number: fk20+110; Liuhe South Interchange, pile number: HK34+300；; ; Xinji interchange, pile number: K40+495；; ; Zhu Zhen interchange, pile number: K63+348), two of which are hub interchanges; Separated interchange 10, culvert and passage148; There are two service areas (K9+650 is Yongning parking area and K59+450 is Liuhe service area). The total length of bridge and tunnel in Nanjing section of Ninglian Expressway is 17.929km, accounting for about 25% of the total length of the route, which is the key project of the highway. The estimated investment of the project is about 4 billion yuan, and the construction period is 4 years. It is planned to be completed and opened to traffic by the end of 2007. On June 5438+February 65438+May, 2006, Nanjing Jiangbei Section and Nanjing Ma Yong Section of Ninglian Expressway passed the handover acceptance with a quality of 96.56 points and excellent quality grade, and were completed and opened to traffic one year earlier than originally planned on June 5438+February 65438+August 2006.